JPH04227471A - Support member - Google Patents

Abstract

PURPOSE: To facilitate the stacking of a support unit for ceramic product at the time of sintering under high temperature. CONSTITUTION: The support unit 10 is of circular plan outline and has alternate upwardly and downwardly disposed castellations 14, 15. A pair of units 10 can be stacked closely together with their upper castellations 14 contiguous or the lower castellations 15 of an upper unit 15 resting on the upper castellations 14 depending on the use conditions.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to support members, and more particularly to support members whose structure is designed to facilitate stacking. This member is particularly suitable as a kiln tool used for manufacturing ceramic products.

0002

[Prior Art] Ceramic products are fired at high temperatures during the manufacturing process; for example, glass products are fired at temperatures ranging from 1000°C to 14°C.
Calcined at a temperature in the range of 50°C. During this firing operation, it is necessary to support the product with supports, and among the various types of known supports are fire-resistant and
tter), tatara (bat), prop and saggar. For example, horsetails are used to support and protect the shape of the pottery from deforming or buckling as it passes through a glassy plastic stage during heat treatment.

[0003]Thus, while it is clear that the kiln tools themselves must be made of highly refractory materials and withstand the firing cycles of the products they support, the kiln tools themselves must also be able to survive the firing process during their own manufacturing process. They are typically made of materials such as cordierite or silicon carbide or ceramic fiber materials containing binders.

[0004] For example, in the case of a horse chestnut, this may be dish-shaped, which approximately corresponds to the shape of a piece of glass to be supported, and each piece of glass may have its own special A shaped hole may be required to provide the desired support to the product between the glass phases. Glassware manufacturers are therefore required to transport large quantities of stored glass, the transportation and storage of which requires considerable space and is therefore expensive.

[0005]

[Problem to be solved by the invention] Therefore, this invention
Specially shaped kiln utensils designed to meet all the requirements of conventional products, but with the space required for storage and during their own firing cycles in the manufacturing process. It is an object of the present invention to provide a kiln tool designed to be more effective in this respect.

[0006]

[Means for Solving the Problems] Therefore, the present invention provides a support member having a planar, substantially circular outer shape and having stepped rims disposed alternately upward and downward on the periphery. , in which case the two support members are in the first position closely superimposed one on the top surface of the other, with the upper step of one touching the upper step of the other and the lower step of one contacting the upper step of the other. is in contact with the other lower step, and the second
in place, one resting on top of the other, with the lower step of the upper support member resting on the upper step of the lower support member, providing space for the product supported by the lower support member. be able to.

It is worth mentioning that in the first position a large number of support elements can be stacked together so as to occupy a minimum of storage space, and this therefore offers great advantages when manufacturing the support elements. Not even. The shaped unfired support members are passed through a kiln or furnace in this overlapping state and fired.

Preferably, the peripheral edge of the support member has a continuous rim, ie, there is no discontinuity between the upper step and the lower step, and the rim is continuous throughout; It is desirable that the lower step portion be connected. This is important in providing strength and desirable load-bearing properties to the support member. The parts of the rim that connect integrally with the upper and lower steps are inclined rather than perpendicular to these steps to facilitate stacking.

[0009] As mentioned above, when the support member is a dowel, the support member is usually dish-shaped, and the exact value of the required dish shape depends on how much is to be supported by the dowel. It has been established in the industry for such specific products.

The kiln tool according to the invention can be made of any suitable refractory material and with any suitable molding tool. Preferably, however, the kiln tool is made from a ceramic fiber composition that includes a binder. A particularly suitable composition is disclosed in European Patent Application No. 9 of this applicant.
No. 0302378.6 (public notice number 0395203)
It is described in. The composition consists of aluminosilicate or alumina fibers with a refractory crushed particulate filler and a refractory reactive binder, both of which are colloidal particle-sized alumina and silica. Contains. Preferably, the composition is formed into the desired shape by first forming it into a slurry and then vacuum forming it into the desired shape. A particularly suitable two-stage molding technique is also disclosed in European Patent Application No. 90302378.6 of this applicant.
(Public Notice No. 0395203),
There, the slurry is first formed into a pre-shape, which is then press-formed into the final required shape, and then fired.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention will now be described by way of example only with reference to the accompanying drawings, in which FIG. 1 is a plan view of a dish-shaped channel according to the invention, and FIG. 1 is a side view taken from line A in FIG. 1, and FIG. 3 is a side view taken from line A in FIG.
4 is a perspective view of two of the type shown in FIG. 1 stacked up, i.e. in the first position, and FIG. FIG. 5 is a similar perspective view with the groove in use or in a second position, i.e., spaced apart, supporting a piece of glassware (not shown) in the lower groove; .

In FIGS. 1 to 3, the winch 10 is dish-shaped with a bottom portion 11 and an inclined side wall 12, and has a circular plane. The periphery of the winch is provided with a continuous rim 13, consisting of an upperly arranged step 14 which is continued by an sloping rim section 16 into an alternating downwardly arranged step 15. It consists of a series of things. The moldings are conveniently made as a single unit by vacuum forming a slurry of a suitable material as described above.

[0013]

[Effect of the invention] In Fig. 4, two pieces of the same type 20
and 20A are shown as a stacked structure, with door 20A nestled neatly within the dish-shaped recess of door 20 defined by bottom 11 and sidewalls 12. The two corresponding upper steps 24 and 24A are in contact or in close proximity, and the corresponding lower steps 25 and 25A are also inclined rims. Portions 26 and 26A are in contact or in close proximity. The sloped side wall 12 and bottom 11 of the upper end 20A are the same as the lower end 20A.
They rest on or are supported on the inclined side walls 12 and bottom 11 of 0, respectively.

FIG. 5 shows the two tabs of FIG. 4 in a second position, ie, in use. Here, the dowel 20A is positioned so as to rest on the upper surface of the dowel 20, with the lower step 25A of the upper dowel and the upper step 24 of the lower dowel.
There is only contact between. Therefore, Tochi 20A
Before this is put into use, a piece of product to be fired is brought into the machine 20. Similarly, further flutes are placed one after the other on flute 20A, etc., and the required number of supports are provided to obtain a stack of articles to be fired.

In another embodiment, the upper surface of the lower step and the lower surface of the upper step each include cooperating slots and protrusions (or vice versa), so that the support members are brought into close proximity in use. However, it can be effectively locked and prevented from moving.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a dish-shaped groove according to the present invention.

FIG. 2 is a side view taken from line A in FIG. 1;

FIG. 3 is a sectional view taken along the line III-III in FIG. 1;

FIG. 4 is a perspective view of the two dowels shown in FIG. 1 in their first proper positions;

FIG. 5 is a perspective view of the two dowels shown in FIG. 1 in a second position;

[Explanation of symbols]

10 Setter 11 Bottom 12 Side wall 13 Rim 14 Upper step part 15 Lower step part 16 Corner rim part 20 Tochi 20A Tochi 24 Upper step part 24A Upper step 25 Lower step part 25A Lower step part 26　Slanted rim part 26A　Slanted rim part

Claims (9)

[Claims] Claim 1: A support member (10, 2
0, 20a), the periphery of the support member is formed by alternating upper step portions (14) and lower step portions (15).
and a rim in the form of a rim, whereby the pair of support members (20, 20A), in the first position, have one upper step (24) proximate to the other upper step (24A); One lower step part (25) is connected to the other lower step part (25A)
stacked closely together in close proximity to, in a second position,
One was attached to the other so that the lower step (25A) of the upper support member (20A) rested on the upper step (24) of the lower support member (20), and was supported by the lower support member (20). A support member characterized in that a space is provided for a product. 2. Support element according to claim 1, characterized in that the peripheral edge of the support element (10) has a continuous rim (13). 3. A continuous rim (13) that connects the adjacent upper step (14) and lower step (15) together.
Support member according to claim 2, characterized in that the portion (16) is not perpendicular to the step but is inclined. 4. A support member according to claim 1, wherein the support member is dish-shaped. 5. The upper surface of the upper step is provided with a slot or protrusion, and is immobilized by a corresponding projection or slot provided on the lower surface of the upper step of the adjacent support member, thereby securing the upper step of the adjacent support member. Support member according to any one of claims 1 to 4, characterized in that the support members are locked together in a second position. 6. Support element according to claim 1, characterized in that the support element is made of a ceramic fiber composition containing a binder. 7. The support member according to claim 6, wherein the ceramic fibers are aluminosilicate or alumina. 8. A support member according to claim 6 or 7, characterized in that the binder used both contains silica and alumina in the size of colloidal particles. 9. A method according to any one of claims 1 to 8, characterized in that a slurry of the required composition is prepared, the slurry is vacuum formed into a desired shape, and then fired. Support member as described.